leumasme

// 'beforescriptexecute' event with loadPayloadSync
// original version: https://gist.github.com/jspenguin2017/cd568a50128c71e515738413cd09a890

;(function () {
    'use strict';
    class Event {
        constructor(script, target) {
            this.script = script;
            this.target = target;